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BD Profile, Premium O-ring Energized Lip Seal With Back-up Ring

For enhanced extrusion protection, Parker offers the BD profile with a positively actuated back-up ring located in the heel. See part number nomenclature for designating this option.

The BD profile is a non-symmetrical profile rod seal. Its rectangular shaped cross section ensures stability in the gland. The o-ring energizer functions as a spring to maintain sealing contact under low pressure or vacuum applications. The knife trimmed, beveled lip does an excellent job wiping fluid film. A stabilizing lip is located below the primary sealing lip, just above the base of the seal, to provide enhanced sealing performance and ensure a tight, stable fit in the gland. Available in Parkers proprietary urethanes, the BD profile provides long life, extrusion resistance, low compression set, shock load resistance and increased sealing performance at zero pressure. The BD profile is designed to be used as a stand alone rod seal or for use with the BR or OD profile buffer seal for more critical sealing applications.

Catalog EPS 5370/USA

Rod Seal BD Profile Preferred Profile

BD Cross-Section with Back-up

Technical Data

Standard Temperature Pressure Surface Materials Range Range* SpeedP5065A88 -70F to +200F 3500 psi < 1.6 ft/s (-57C to +93C) (241 bar) (0.5 m/s)Back-upW4655 -65F to +250F 10,000 psi < 1.6 ft/s (-54C to +93C) (688 bar) (0.5 m/s)Alternate Materials: For applications that may require an alternate material, please go to www.parker.com/eps/FluidPower to check current tooling and part number availability, or contact your local Parker representative.

*Pressure Range without wear rings. If used with wear rings, see Table 2-4, page 2-5.

BD Installed in Rod Gland

Parker Hannifin CorporationEngineered Polymer Systems Division

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Table of ContentsCatalog EPS 5370/USA

Gland Dimensions BD Profile

Part Number Nomenclature BD Profile (5065, with Back-up)Table 5-5. BD Profile

Seal Compound4-Digit Material CodeExample:5065 = 88A Polyurethane

Gland Depth (x1000) or Seal Nominal Radial Cross-SectionExample: .250 x 1000 = 250

5 0 6 5 BD

Profile

0 2 0 0 02 5 0

Rod Diameter (x1000) or Seal Nominal I.D.Example: 2.000 x 1000 = 02000

3 7 5

Energizer Material CodeExample: N = 70A Nitrile O-ring (See Table 6-3 on page 6-5 for additional energizer options.)

N

Seal Nominal Axial WidthExample: .375 x 1000 = 375

BD Profile

Table 5-6. BD Profile Rod Gland Calculation

A Rod Diameter Seal

B Groove Diameter

C Groove Width

D Throat Diameter*

Range Tol. Cross SectionAxial Width Calculation Tol. +.015/-.000 Calculation Tol.

0.250 - 0.624 +.000/-.001 1/8 (.125) 3/16 (.187) Dia. A + .250 +.002/-.000 0.206 Dia. A + .002 +.002/-.000

0.625 - 0.999 +.000/-.001 1/8 (.125) 1/4 (.250) Dia. A + .250 +.002/-.000 0.275 Dia. A + .002 +.002/-.000

1.000 - 1.499 +.000/-.002 3/16 (.187) 5/16 (.312) Dia. A + .375 +.002/-.000 0.343 Dia. A + .002 +.002/-.000

1.500 - 1.999 +.000/-.002 3/16 (.187) 3/8 (.375) Dia. A + .375 +.002/-.000 0.413 Dia. A + .002 +.002/-.000

2.000 - 3.499 +.000/-.002 1/4 (.250) 3/8 (.375) Dia. A + .500 +.003/-.000 0.413 Dia. A + .003 +.003/-.000

3.500 - 4.999 +.000/-.002 5/16 (.312) 1/2 (.500) Dia. A + .625 +.004/-.000 0.550 Dia. A + .003 +.003/-.000

5.000 - 9.499 +.000/-.002 3/8 (.375) 5/8 (.625) Dia. A + .750 +.005/-.000 0.688 Dia. A + .004 +.004/-.000

9.500 - 10.000 +.000/-.003 1/2 (.500) 3/4 (.750) Dia. A + 1.000 +.007/-.000 0.825 Dia. A + .005 +.005/-.000

*If used with wear rings, refer to wear ring throat diameter, see Section 9. For custom groove calculations, see Appendix C.

Above table reflects recommended cross-sections for rod diameters shown. Alternate cross-sections and additional sizes may be considered. Consult www.parker.com/eps/FluidPower for additional cross-sections and sizes, hardware specifications, and part number availability. Contact your Parker representative for assistance.

Please refer to Engineering Section 2, page 2-8 for surface finish and additional hardware considerations.

R 1

Positively Actuated Back-up Ring, Rod R1 = 4655(Non-standard materials available)

Gland Depth

C

A BD

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Table of ContentsCatalog EPS 5370/USA

BD Profile

Hardware Dimensions

Part Number A Rod Diameter

B Groove Diameter

C Groove Width

D Throat Diameter*

Dia. Tol. Dia. Tol. +.015/-.000 Dia. Tol.

0.250 +.000/-.001 0.500 +.002/-.000 0.206 0.252 +.002/-.000 5065BD12500250R1N187

0.312 +.000/-.001 0.562 +.002/-.000 0.206 0.314 +.002/-.000 5065BD12500312R1N187

0.375 +.000/-.001 0.625 +.002/-.000 0.206 0.377 +.002/-.000 5065BD12500375R1N187

0.437 +.000/-.001 0.687 +.002/-.000 0.206 0.439 +.002/-.000 5065BD12500437R1N187

0.500 +.000/-.001 0.750 +.002/-.000 0.206 0.502 +.002/-.000 5065BD12500500R1N187

0.625 +.000/-.001 0.875 +.002/-.000 0.275 0.627 +.002/-.000 5065BD12500625R1N250

0.750 +.000/-.001 1.000 +.002/-.000 0.275 0.752 +.002/-.000 5065BD12500750R1N250

0.875 +.000/-.001 1.125 +.002/-.000 0.275 0.877 +.002/-.000 5065BD12500875R1N250

1.000 +.000/-.002 1.375 +.002/-.000 0.343 1.002 +.002/-.000 5065BD18701000R1N312

1.125 +.000/-.002 1.500 +.002/-.000 0.343 1.127 +.002/-.000 5065BD18701125R1N312

1.250 +.000/-.002 1.625 +.002/-.000 0.343 1.252 +.002/-.000 5065BD18701250R1N312

1.375 +.000/-.002 1.750 +.002/-.000 0.343 1.377 +.002/-.000 5065BD18701375R1N312

1.500 +.000/-.002 1.875 +.002/-.000 0.413 1.502 +.002/-.000 5065BD18701500R1N375

1.625 +.000/-.002 2.000 +.002/-.000 0.413 1.627 +.002/-.000 5065BD18701625R1N375

1.750 +.000/-.002 2.125 +.002/-.000 0.413 1.752 +.002/-.000 5065BD18701750R1N375

1.875 +.000/-.002 2.250 +.002/-.000 0.413 1.877 +.002/-.000 5065BD18701875R1N375

2.000 +.000/-.002 2.500 +.003/-.000 0.413 2.003 +.003/-.000 5065BD25002000R1N375

2.125 +.000/-.002 2.625 +.003/-.000 0.413 2.128 +.003/-.000 5065BD25002125R1N375

2.250 +.000/-.002 2.750 +.003/-.000 0.413 2.253 +.003/-.000 5065BD25002250R1N375

2.375 +.000/-.002 2.875 +.003/-.000 0.413 2.378 +.003/-.000 5065BD25002375R1N375

2.500 +.000/-.002 3.000 +.003/-.000 0.413 2.503 +.003/-.000 5065BD25002500R1N375

2.625 +.000/-.002 3.125 +.003/-.000 0.413 2.628 +.003/-.000 5065BD25002625R1N375

2.750 +.000/-.002 3.250 +.003/-.000 0.413 2.753 +.003/-.000 5065BD25002750R1N375

3.000 +.000/-.002 3.500 +.003/-.000 0.413 3.003 +.003/-.000 5065BD25003000R1N375

3.250 +.000/-.002 3.750 +.003/-.000 0.413 3.253 +.003/-.000 5065BD25003250R1N375

3.500 +.000/-.002 4.125 +.004/-.000 0.550 3.503 +.003/-.000 5065BD31203500R1N500

3.750 +.000/-.002 4.375 +.004/-.000 0.550 3.753 +.003/-.000 5065BD31203750R1N500

4.000 +.000/-.002 4.625 +.004/-.000 0.550 4.003 +.003/-.000 5065BD31204000R1N500

4.250 +.000/-.002 4.875 +.004/-.000 0.550 4.253 +.003/-.000 5065BD31204250R1N500

4.500 +.000/-.002 5.125 +.004/-.000 0.550 4.503 +.003/-.000 5065BD31204500R1N500

4.750 +.000/-.002 5.375 +.004/-.000 0.550 4.753 +.003/-.000 5065BD31204750R1N500

5.000 +.000/-.002 5.750 +.005/-.000 0.688 5.004 +.004/-.000 5065BD37505000R1N625

5.500 +.000/-.002 6.250 +.005/-.000 0.688 5.504 +.004/-.000 5065BD37505500R1N625

6.000 +.000/-.002 6.750 +.005/-.000 0.688 6.004 +.004/-.000 5065BD37506000R1N625

6.500 +.000/-.002 7.250 +.005/-.000 0.688 6.504 +.004/-.000 5065BD37506500R1N625

7.000 +.000/-.002 7.750 +.005/-.000 0.688 7.004 +.004/-.000 5065BD37507000R1N625

*If used with wear rings, refer to wear ring throat diameter, see Section 9. For custom groove calculations, see Appendix C.

Above table reflects recommended cross-sections for rod diameters shown. Alternate cross-sections and additional sizes may be considered. Consult www.parker.com/eps/FluidPower for additional cross-sections and sizes, hardware specifications, and part number availability. Contact your Parker representative for assistance.

Gland Dimensions BD Profile (5065, with Back-up)Table 5-7. BD Profile Rod Gland Dimensions , Parker Standard Sizes

Parker Hannifin CorporationEngineered Polymer Systems Division

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Table of ContentsCatalog EPS 5370/USA

BD Profile

Hardware Dimensions

Part Number A Rod Diameter

B Groove Diameter

C Groove Width

D Throat Diameter*

Dia. Tol. Dia. Tol. +.015/-.000 Dia. Tol.

7.500 +.000/-.003 8.500 +.007/-.000 0.825 7.505 +.005/-.000 5065BD50007500R1N750

8.000 +.000/-.003 9.000 +.007/-.000 0.825 8.005 +.005/-.000 5065BD50008000R1N750

8.500 +.000/-.003 9.500 +.007/-.000 0.825 8.505 +.005/-.000 5065BD50008500R1N750

9.000 +.000/-.003 10.000 +.007/-.000 0.825 9.005 +.005/-.000 5065BD50009000R1N750

9.500 +.000/-.003 10.500 +.007/-.000 0.825 9.505 +.005/-.000 5065BD50009500R1N750

10.000 +.000/-.003 11.000 +.007/-.000 0.825 10.005 +.005/-.000 5065BD50010000R1N750

*If used with wear rings, refer to wear ring throat diameter, see Section 9. For custom groove calculations, see Appendix C.

Above table reflects recommended cross-sections for rod diameters shown. Alternate cross-sections and additional sizes may be considered. Consult www.parker.com/eps/FluidPower for additional cross-sections and sizes, hardware specifications, and part number availability. Contact your Parker representative for assistance.

Gland Dimensions BD Profile (5065, With Back-up) Table 5-7. BD Profile Rod Gland Dimensions, Parker Standard Sizes (cont'd)